<p>sweet! Yeah, those I,II,III ones ****ED ME OFF COMPLETELY!</p>
<p>I hated those from the beginning, but there were SO many...</p>
<p>yea too many of those questions. does anyone know what the curve is gonna be like? is it the same for every test?</p>
<p>I thought the June Physics was ALOT easier. It had alot more mechanics than this one did =(</p>
<p>remember the wire question with two wires of I and 2I and the particle in between or something like that...what was the answer?</p>
<p>and the photoelectric effect proves that light has particle-like properties, right?</p>
<p>I put it proved it had particle-like properties. As for the wire one, its 2L. Was the one on temperature (I, II, III) just the one where the particles move in random direction? The other choices were same velocity, something else. This was like a gas at equilibrium.</p>
<p>Yeah, particles move in random direction. That's what I put.</p>
<p>random direction for sure, but i didnt know about either of the other two...i ended up skipping it</p>
<p>My prediction for me: 680</p>
<p>for the temperature one: they all have random direction, but they do not have the same speed (the rate mean squared is the same) and temperature can still affect their motion. I believe it was just I, but i could be wrong.</p>
<p>Yeah I think I only chose I as well.</p>
<p>do you guys remember any other questions?
what did you guys put for the one in the beginning that asked which set of electrical charges had the greatest center electrical field. I think I made a stupid mistake.</p>
<p>I think the greatest field at the center was the one with two +2Q and two -2Q charges.</p>
<p>That wet ground/dry ground question was the most absurd I've ever seen.</p>
<p>Oh I skipped that one. Any thoughts on the last question? It was a magnetic field continually increasing, and it asked what would affect the current in the loop.</p>
<p>I think the last one was all three.</p>
<p>IMO, for the gas in equilibrium, I put I, II, and III. I am not 100% sure but this is how I reasoned through the problem. We all basically can agree on random direction (I). The only choices with I were I only, I and III only, or I, II, and III. However, considering a gas in equilibrium, in an ideal situation, would have elastic collisions, wouldn't the velocity be the same (conservation of momentum: m1v1 = m2v1)?
If my reasoning is true, wouldn't the only possible answer be E?</p>
<p>I could be wrong, cuz I suck at chemistry and behavior of particles in different states ==;;</p>
<p>I found physics very easy. All concept questions, no real mechanics equations to work out.</p>
<p>For that ground wet/dry headlight question what did you guys put? I put it was partly refracted into the water, which makes sense I guess.</p>
<p>the wet ground question was that the wet road is more reflective while the dry ground bounces light off every where. actually i thought that was a pretty good question haha.
gosmartie, the question was whether what is the same for all the particles. The average speed of all the particles is the same, but their exact speeds aren't. It's actually right in the ideal gas law.
The increasing magnetic field question was all 3 I believe.
theotherguy, haha I like the mechanics work cause that i can be sure i'm getting right. all the concept questions were a curveball for me. i expected more kinematics and stuff</p>
<p>Oh darn. I was guessing between what you said and the refraction of light. Oh well...</p>
<p>are you sure about the wet roads one? i would rather think since air is a less dense medium, the light would always enter the water on the road and get refracted, so there are less light that are reflected off of the road and entering your eye and making it harder to see.</p>